A337350 - cp's OEIS frontend

A337350 a(n) is the number of lattice paths from (0,0) to (2n,2n) using only the steps (1,0) and (0,1) and which do not touch any other points of the form (2k,2k).

n	a(n)
0	1
1	6
2	34
3	300
4	3146
5	36244
6	443156
7	5646040
8	74137050
9	996217860
10	13633173180
11	189347631720
12	2662142601924
13	37815138677960
14	541882155414376
15	7823955368697776
16	113712609033955834
17	1662288563798703204
18	24424940365489658540
19	360537080085493670856

[1, 6, 34, 300, 3146, 36244, 443156, 5646040, 74137050, 996217860, 13633173180, 189347631720, 2662142601924, 37815138677960, 541882155414376, 7823955368697776, 113712609033955834, 1662288563798703204, 24424940365489658540, 360537080085493670856]

cp's OEIS Frontend

A337350 a(n) is the number of lattice paths from (0,0) to (2n,2n) using only the steps (1,0) and (0,1) and which do not touch any other points of the form (2k,2k).

Table of values

List of values